From patchwork Thu Oct 10 22:43:06 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Atwood X-Patchwork-Id: 13831266 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5BE50D24465 for ; Thu, 10 Oct 2024 22:43:28 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B78F810EA02; Thu, 10 Oct 2024 22:43:27 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="JkuKpNT5"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.12]) by gabe.freedesktop.org (Postfix) with ESMTPS id A199D10E9F3; Thu, 10 Oct 2024 22:43:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1728600201; x=1760136201; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Vi/y5IAUGuFbIYKpdu9yRPhN/rCc/xJ1o6UvF9JeOq0=; b=JkuKpNT5UrNfGOhO9IJ0uuFr0rkzn3mW+tNkPIicEq/ZIrk8Ferusm88 wY24uPWZ+ilNlsp4M9zrIRR8Pq6hpAF61kVcTqyZaRwFUpVeq9vkRfRBT HsorkpLOIE75SDZQD9GK3GYY8WjqnQsHhmNs3Bv+qlDv27M4hkatzKAez a40GYtR51vpToQa0/q5sxQFb9Fi/LL/dIBvCYHq7ivlMhsgTmmpaC5zti wDvRjKU7Ht084vMDVyZ+zekhCulXn7ulog0zq4BNIjpKqCWJwgaoN7l3b Q0lUI9LNBDCGeAQOEuuETS5Xbfv6LEldxFg0gedNVohwrQY8VcJLxGr/E A==; X-CSE-ConnectionGUID: BnhxcipFRQODDDKS4JYoLA== X-CSE-MsgGUID: n0WxCezMQFujdUqFT9hAXg== X-IronPort-AV: E=McAfee;i="6700,10204,11221"; a="39380869" X-IronPort-AV: E=Sophos;i="6.11,194,1725346800"; d="scan'208";a="39380869" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Oct 2024 15:43:21 -0700 X-CSE-ConnectionGUID: cqQtj6TtSYuN957H3iyC1Q== X-CSE-MsgGUID: 34G+7QbmSNibifC6KG4u3g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,194,1725346800"; d="scan'208";a="76732041" Received: from msatwood-mobl.jf.intel.com ([10.24.12.132]) by fmviesa009-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Oct 2024 15:43:20 -0700 From: Matt Atwood To: intel-xe@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Cc: Radhakrishna Sripada , Gustavo Sousa , Matt Atwood Subject: [PATCH v2 05/10] drm/i915/xe3lpd: Add cdclk changes Date: Thu, 10 Oct 2024 15:43:06 -0700 Message-ID: <20241010224311.50133-6-matthew.s.atwood@intel.com> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20241010224311.50133-1-matthew.s.atwood@intel.com> References: <20241010224311.50133-1-matthew.s.atwood@intel.com> MIME-Version: 1.0 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Radhakrishna Sripada Xe3_LPD has new max cdclk of 691200 which requires reusing the lnl table and modify/add higher frequencies. Updating the max cdclk supported by the platform and voltage_level determination is also updated. There are minor changes in cdclk programming sequence compared to lnl, where programming cd2x divider needs to be skipped. This is already handled by the calculations in existing code. v2: update tables Bspec: 68861, 68863, 68864 Cc: Gustavo Sousa Signed-off-by: Radhakrishna Sripada Signed-off-by: Matt Atwood --- drivers/gpu/drm/i915/display/intel_cdclk.c | 61 +++++++++++++++++++++- 1 file changed, 59 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c index fa1c2012b10c..13829a3c3c42 100644 --- a/drivers/gpu/drm/i915/display/intel_cdclk.c +++ b/drivers/gpu/drm/i915/display/intel_cdclk.c @@ -1468,6 +1468,39 @@ static const struct intel_cdclk_vals xe2hpd_cdclk_table[] = { {} }; +static const struct intel_cdclk_vals xe3lpd_cdclk_table[] = { + { .refclk = 38400, .cdclk = 153600, .ratio = 16, .waveform = 0xaaaa }, + { .refclk = 38400, .cdclk = 172800, .ratio = 16, .waveform = 0xad5a }, + { .refclk = 38400, .cdclk = 192000, .ratio = 16, .waveform = 0xb6b6 }, + { .refclk = 38400, .cdclk = 211200, .ratio = 16, .waveform = 0xdbb6 }, + { .refclk = 38400, .cdclk = 230400, .ratio = 16, .waveform = 0xeeee }, + { .refclk = 38400, .cdclk = 249600, .ratio = 16, .waveform = 0xf7de }, + { .refclk = 38400, .cdclk = 268800, .ratio = 16, .waveform = 0xfefe }, + { .refclk = 38400, .cdclk = 288000, .ratio = 16, .waveform = 0xfffe }, + { .refclk = 38400, .cdclk = 307200, .ratio = 16, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 326400, .ratio = 17, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 345600, .ratio = 18, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 364800, .ratio = 19, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 384000, .ratio = 20, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 403200, .ratio = 21, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 422400, .ratio = 22, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 441600, .ratio = 23, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 460800, .ratio = 24, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 480000, .ratio = 25, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 499200, .ratio = 26, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 518400, .ratio = 27, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 537600, .ratio = 28, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 556800, .ratio = 29, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 576000, .ratio = 30, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 595200, .ratio = 31, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 614400, .ratio = 32, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 633600, .ratio = 33, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 652800, .ratio = 34, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 672000, .ratio = 35, .waveform = 0xffff }, + { .refclk = 38400, .cdclk = 691200, .ratio = 36, .waveform = 0xffff }, + {} +}; + static const int cdclk_squash_len = 16; static int cdclk_squash_divider(u16 waveform) @@ -1594,6 +1627,18 @@ static u8 rplu_calc_voltage_level(int cdclk) rplu_voltage_level_max_cdclk); } +static u8 xe3lpd_calc_voltage_level(int cdclk) +{ + static const int xe3lpd_voltage_level_max_cdclk[] = { + [0] = 307200, + [1] = 691200, + }; + + return calc_voltage_level(cdclk, + ARRAY_SIZE(xe3lpd_voltage_level_max_cdclk), + xe3lpd_voltage_level_max_cdclk); +} + static void icl_readout_refclk(struct intel_display *display, struct intel_cdclk_config *cdclk_config) { @@ -3437,7 +3482,9 @@ void intel_update_max_cdclk(struct intel_display *display) { struct drm_i915_private *dev_priv = to_i915(display->drm); - if (IS_JASPERLAKE(dev_priv) || IS_ELKHARTLAKE(dev_priv)) { + if (DISPLAY_VER(display) >= 30) { + display->cdclk.max_cdclk_freq = 691200; + } else if (IS_JASPERLAKE(dev_priv) || IS_ELKHARTLAKE(dev_priv)) { if (display->cdclk.hw.ref == 24000) display->cdclk.max_cdclk_freq = 552000; else @@ -3650,6 +3697,13 @@ void intel_cdclk_debugfs_register(struct intel_display *display) display, &i915_cdclk_info_fops); } +static const struct intel_cdclk_funcs xe3lpd_cdclk_funcs = { + .get_cdclk = bxt_get_cdclk, + .set_cdclk = bxt_set_cdclk, + .modeset_calc_cdclk = bxt_modeset_calc_cdclk, + .calc_voltage_level = xe3lpd_calc_voltage_level, +}; + static const struct intel_cdclk_funcs rplu_cdclk_funcs = { .get_cdclk = bxt_get_cdclk, .set_cdclk = bxt_set_cdclk, @@ -3794,7 +3848,10 @@ void intel_init_cdclk_hooks(struct intel_display *display) { struct drm_i915_private *dev_priv = to_i915(display->drm); - if (DISPLAY_VER(display) >= 20) { + if (DISPLAY_VER(display) >= 30) { + display->funcs.cdclk = &xe3lpd_cdclk_funcs; + display->cdclk.table = xe3lpd_cdclk_table; + } else if (DISPLAY_VER(display) >= 20) { display->funcs.cdclk = &rplu_cdclk_funcs; display->cdclk.table = xe2lpd_cdclk_table; } else if (DISPLAY_VER_FULL(display) >= IP_VER(14, 1)) {